Alloy



Patented Jan. 19, 1926. I

UNITED STATES JAMES I. HEE, OF HAMILTON, OHIO.

ALLOY.

No Drawing.

To all whom it may concern:

Be it known that I, JAMES I. Man, a citizen of the United States, residing at Hamilton, in the county of Butler and State of Ohio, have invented certain new and useful Improvements in Alloys, of which the following is a specification.

This invention relates to alloys.

It is the object of this invention to produce steel alloy which will be drill proof, rust proof, non-breakable and non-burnable; and which will be especially adapted for steel plates for burglar-proof vaults, as well as other purposes, bearings, as for instance car wheel bearings, carbonizing boxes and for use generally where hard steel is required.

It has been found through extensive experiments that steel alloy having the characteristics enumerated above is produced by combining tungsten, vanadium, carbon, chromium, sulphur, copper, iridium and pig iron. It has also been found that steel alloy of substantially the same characteristics may be produced by combining tungsten, molybdenum, vanadium, cobalt, carbon, copper, chromium and pi iron.

A preferred example of a formula for a steel alloy in accordance with the present invention is as follows Formula N 0. 1.

The following is the method of combining the ingredients to make this alloy steel First, I melt the the required temperature of about 2700 de grees Fahrenheit for that purpose.

Second, while the pig iron is in this molten state I add the tungsten, vanadium, carpig iron, bringing it to Application filed February 6, 1925. Serial No. 7,388.

hon, chromium, sulphur and copper in the. proportions set forth in formula N o. 1, and raise the temperature until the ingredients are practically melted when I add the proper proportions of iridium which acts as a cleansing agent and makes a smoother finish for the product.

Third, the temperature of the mass is then raised to approximately 5450 degrees Fahrenheit, 01' the melting point of tungsten. When this is accomplished, I then stir the entire batch for, say two minutes, to thoroughly incorporate into the molten pig iron these other ingredients and to thoroughly incorporate each ingredient with the other.

-Fourth, this product is now poured off in any of the conventional ways employed in foundries, as into molds to be cast in the form of sheets. I usually make such sheets, say six feet long, three feet wide, and as much as an inch thick, but these dimensions form no part of this invention and are merely stated as illustrative.

More or less variation is possible in carrying out my invention without any substantial detriment to the desirable qualities of the product. Unsubstantial variations in the quantities of the several components are permissible.

Another example of alloy made in ac-- cordance with the present invention is -of about the following composition Formula N o. 2.

Per cent.

Tungsten 68 Vanadium 2 Carbon 4 Chromium 2 Sulphur 1 Copper 5 Pig iron 18 The method of combining these ingredients is the same as that described in connection with formula No. 1, except that all the ingredients are added at one time to the molten iron.

Another example of alloy made in accordance with the present invention is of about the following composition Formula N0.

These ingredients, like in formula No. 2, are combined by adding all of the ingredients at one time into the molten iron, the remainder of the process being the same as ghat described in connection with formula The characteristics of the alloys resulting from the several formulas above given, as well as variations thereof, are chiefly hardness, so much so, that it will resist boring by drills, will resist abrasion or wearing by friction and will resist heat to such an extent that it is practically immune to the effect of acetylene torches or any other of the usual torches. It is also practically rust proof.

The principal uses to which my alloy is especially adapted are burglar-proof safes, bearings, as for instance car wheel bearings, and any other situations where great hardness and resistance to heat and wear and rust are necessary.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. As a new composition of matter, an alloy steel comprising tungsten, vanadium, carbon, chromium, sulphur, copper, iridium, and pig iron in substantially the propor tions set forth.

2. As a new composition of matter, an alloy steel of analysis substantially as follows: tungsten, 68%: vanadium, 2%; carbon, 4%; chromium, 2%; sulphur, 1%; copper, 5%; iridium, 3%; and pig iron, 15%.

3. As a new composition of matter, an alloy steel comprising tungsten, Vanadium, carbon, chromium, sulphur, copper and pig iron in substantially the proportions set forth.

4. As a new composition of matter, an alloy steel of analysis substantially as follows: tungsten, 68%; vanadium, 2%; carbon, 4%; chromium, 2%; sulphur, 1%; copper, 5% ,and pig iron, 18%.

In testimony whereof, I allix my signature.

JAMES I. MEE. 

